Note-Taking App’s Secret to Success: Keep It Simple

A few days ago, Sundar Pichai, the head of Google Inc.’s Android mobile operating system came to Seoul to say that his company will open a startup center in Seoul to give entrepreneurs here more exposure.

In introducing the search engine giant’s plans, he noted the significance of the growing pool of Korean Android-app developers, saying that the number has tripled over the past two years, making Korea one of the top five countries in the world in terms of the number of Android developers.

But it isn’t the case where Korean developers simply latched on to Android overnight. Long before this recent boom and even before Samsung started selling Android-powered smartphones, two Koreans, working from a small office in Seoul, quietly racked up over 65 million downloads to date with a straightforward note-taking app.

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